T46S Can't Factory Reset

[mvpmedia]

I purchased several dozen T46S phones from a closed business. I cannot reset by holding down the OK button and admin/admin doesn't work. I tried TFTP with newer firmware, but still cannot reset to factory. I cannot set up zero-touch button to get another config file in to enable the OK reset button.

What else can I do?

The MAC for one of the phones is 805ec0596bc0

[Yisroel_MongoTEL]

(10-19-2020 02:23 AM)mvpmedia Wrote:  I purchased several dozen T46S phones from a closed business. I cannot reset by holding down the OK button and admin/admin doesn't work. I tried TFTP with newer firmware, but still cannot reset to factory. I cannot set up zero-touch button to get another config file in to enable the OK reset button.

What else can I do?

The MAC for one of the phones is 805ec0596bc0

If TFTP flashing succeeded and it still got back the old settings then it is likely on Yealink RPS.

Contact Yealink about removing them ticket.yealink.com